Had the chance to take Julio's Yukon II out for some shooting. Had previously gave it a good shine and thought it needed a little exercise to "blow out any carbon build up". It was a nice and sunny day so I got some glam shots as well.

Now what to shoot. I liked the lead flower made by the Victory but, the back of a spent 87 slug just wouldn't do. How about a lead casting.



Here is the shot set up the lead billet is surrounded and backed by my steel big bore targets. Wanted to keep the lead upright and any fliers contained for examination.

The result was to knock down all of the steel targets with each shot at fifty yards. I hit very close to the center of the individual billets, but seeking the path of least resistance the slugs deflected toward the thinner regions of the casting. Both penetrated the lead completely and flattened against the steel backer with a clang. At first I thought I had missed the lead altogether. The clang of the slug stricking steel was only minimally muffled by going through the lead first.

This result was a little surprising when compared with the ballistic bear being shot by the Carnivore 58. Both are 500 + ft/lbs with this slug and the BB putty stopped it. Now I know the lead is much thinner but still, electricians putty vs lead. Who da thunk it???

Taking good care of the Yukon for a great bud, thanks Julio!

Kent



Edited 1 time(s). Last edit at 04/06/2009 02:55PM by Cajun Justice.

Hi Kent,

Interesting!

You have quite a bit of power on tap there. If I recall ... the Carnivore was doin' 600 and Julio's numbers, sent with his targets, had him over 700 foot pounds. Don't let all that power go to your head ... it only works with targets. No "world domination" now!



GAry

Kent,

Sorta like working with clay, man-style!

What a play ground you have; Mom was right, I should have been a doctor.

Lon

Hi Lon,

Your mother would have you check back at the homestead to see if you can play. I checked with my mom and she says you can come over to play anytime. Hope you can make it.

Shooting lead into lead eliminates the tedious task of picking up the slug remains from the grass or melting them down into a new billet. How green, hope it makes me eligible for some Obama tax credits.

Kent

All that green talk ... sort of brought a tear. Nothing like a "natural" element (like lead) to brighten your day. hehe.

Now, ya have to get a small bake pan (like for brownies) ... and pour yourself a single thickness block - about 1/2 - 3/4 inch thick. Set the pan on bricks now (not Kelli's table).

Now that I think about it ... get two or three pans, and nest them to make a more sturdy tray that won't warp up as much.

We'll just wait here while ya do that.

Gary

Kent,

In spite of recent events I'm still keeping October on the calendar.

Corse you may have heard I'm going to have to borrow a gun this year.



Edited 1 time(s). Last edit at 04/07/2009 05:22AM by Bigbore.

Nice post Kent. It looks like Gary has already provided instruction on how to improve your lead on lead penetration experiment. We're just waiting now...

Assuming you filled the gun to the same pressure as Julio and used the same weight slugs, you should be seeing just over 702 FPE. That's enough to make it significantly more powerful than the other .58s. You might have to pull out the bear again... Then we can rank the guns by "knuckles of penetration."

Hey Jerry,

I agree with the new testing proceedures. I'll use an old aluminum pan to get a lead billet of equal thickness. Hey, how about I cant the tray to get a slopeing lead billet so we can test at various thicknesses. I think the best pic will come from the slug just exiting the lead with some "petals" remaining behind at the edges. I'll also develop a different holder for the lead so as not to interfere with slugs exiting etc. Then the B.Bear will come back out to play. WHOO HOO!

Now the hard question, which slug was Julio using. I assume the two band, and I believe at 3200 psi? That's what I shot above. Captain Jack, need some confirmation. Is that correct?

Give me some time it may take a few days to get the lead ready. Until then,

Kent

Oh ... OOhhooo!!!!

Can the Ballistic Bear hold the lead slab? hehehe

Gary

barnespneumatic Wrote:

>
> Can the Ballistic Bear hold the lead slab?

Oh now thats just sick. But a valid and sure to be very fun question to see the answser to..... Kent?

What can I say Kent but "Ouch!!" That's some serious lead hitting some serious lead
Regards
Neil

Holy Cow!!!
That'll be carrying some energy then!!!!!
My lead plate, bulletproof jacket is gonna need a rethink......!!

in a word awsome , a good reminder of what ftlb figures actually look like , nice post , really nice rifle . thanks tom

Are the slugs a differnt alloy, or something harder than the billet?

you'd think (and thats the crux of most of my problems) that simialr materials would just blend together.....

oo oo maybe some one could shoot a Duct seal pellett at the bear.....

No - they're the same stuff.

It's the velocity that does it.

That's why a "lead" slug will deform "steel" targets ... and even punch right thru things like steel drums.

Gary

barnespneumatic Wrote:
-------------------------------------------------------
> No - they're the same stuff.
>
> It's the velocity that does it.
>
Oh, right! kinetic energy makes "target" deform then fail, and it passes thru....just overwhelms it.....

Right ... just like the Matrix.

Ruptures the Space/Time Continuum. Quite simple really.



Gary

when you put it like that gary it all makes sense , how about shooting a candle through an oak plank. they did it in days of old , or so im told , with blackpowder guns . be an interesting experiment , you know , one of those days when everythings caught up , and your at a loose end.

Basic impact physics there, velocity trumps normal expectations every time. If you tried to hammer those slugs through your lead billet with a claw hammer, you'd just automatically assume it's impossible...and at hammer speeds...it's not.

Add another thousand FPS, and those slugs would go right through 1/8" steel, add another thousand FPS on top of that, and they'd paperpunch 3/8" of regular non-hardened steel with a lot of damage left over for behind the scenes. The impact-damage continuum is highly non-linear, as is the energy needed to accellerate a slug to the numbers we're talking about. Getting twice the velocity doesn't take twice the effort, it's more like four times as much.

Same basic principle explains how meteors do so much damage, they're just going so dang fast. At orbital velocities even a snowflake represents a serious hazard to the astronauts up there, that's why they move the shuttle out of the way even for the smallest objects that could present a collision hazard.

I too will be eagerly awaiting the results of the Yukon II "bake-off".

shooting snowballs through a pine door ,,, ohh the possabilitys are endless ,,, unless the snow ball turns to a small water cloud first ,still its a mind bending thought. keep playing , oops experimenting , ill look forwards to reading about the results
thanks
tom

Yeah ... we'd definitely need an air "cannon" for the bulk of these tests. LOX rats, snowballs, candles ....

Gary

Sounds like a job for (cue the music) CHIEF JUSTICE!!!!

That's right Jerry. Some pics of shooting April Mississippi snowballs is what we need right now! Couldn't let that soft ball just hang there ....

heheheh

Gary

an air cannon ,,, oh why stop there ,, its got to be an air gattling gun . or how about shooting a wild boar at a hunk of lead instead of just the normal other way round thingy , that other folk do.